Hi,

using jQuery, how to validate a required input text before submitting or placing the cursor in another field?

I've tried this below but it doesn't work.

$(document).ready(function() {
  $("#form").validate({
    rules: {
      name: "coche4[marca]",
      required: true
      }
    },
    messages: {
      comment: "You must insert something."
    }
  });
});

Regards

Have you tried looking at this page?

http://docs.jquery.com/Plugins/validation

It includes source code and a demo.

Example

$("input[type=text]").keyup(function(){
$("#form").validate({
    rules: {
      name: "coche4[marca]",
      required: true
      }
    },
    messages: {
      comment: "You must insert something."
    }
  });
});

If your input text button has an ID you can use that, too.